42It must also be borne in mind that a special status of this kind, which distinguishes a ‘person other than the persons addressed’, within the meaning of Plaumann v Commission (parargraph 31 above, EU:C:1963:17), from any other economic operator, must not necessarily be inferred from factors such as a significant decline in turnover, appreciable financial losses or a significant reduction in market share following the grant of the aid in question. The grant of State aid can have an adverse effect on the competitive situation of an operator in other ways too, in particular by causing the loss of an opportunity to make a profit or a less favourable development than would have been the case without such aid. Similarly, the seriousness of such an effect may vary according to a large number of factors such as, in particular, the structure of the market concerned or the nature of the aid in question. Demonstrating a substantial adverse effect on a competitor’s position on the market cannot, therefore, simply be a matter of the existence of certain factors indicating a decline in its commercial or financial performance (see judgment in British Aggregates v Commission, paragraph 39 above, EU:C:2008:757, paragraph 53 and the case-law cited).
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